Phys.Rev. C 100, 034324 (2019)

Y.Z.Ma, L.Coraggio, L.De Angelis, T.Fukui, A.Gargano, N.Itaco, F.R.Xu

Contribution of chiral three-body forces to the monopole component of the effective shell-model Hamiltonian

NUCLEAR STRUCTURE ^41,42Ca, ⁴¹Sc; calculated low-lying levels, J, π, single-particle spectra for ⁴¹Ca and ⁴¹Sc. ^{40,42,44,46,48,50,52,54,56,58,60}Ca, ^{48,50,52,54,56,58,60,62,64,66,68}Ni; calculated neutron and proton effective single-particle energies (ESPEs), energies of 2+ levels, S(2n). ^{42,44,46,48,50,52,54,56,58,60,62}Ti, ^{44,46,48,50,52,54,56,58,60,62,64}Cr, ^{46,48,50,52,54,56,58,60,62,64,66}Fe; calculated energies of 2+ levels, S(2n). ⁴⁶Ar, ⁴⁸Ca, ⁵⁰Ti, ⁵²Cr, ⁵⁴Fe, ⁵⁶Ni; calculated energies of 2+ levels, B(E2) for the first 2+ levels. Realistic shell-model calculations for fp-shell even-even nuclei (Z=20-28, N=20-40) starting from chiral two-nucleon (2NF) and three-nucleon (3NF) forces, within the many-body perturbation theory. Comparison with experimental data. Discussed the role of the monopole component of the effective shell-model Hamiltonian.

doi: 10.1103/PhysRevC.100.034324